Invention Grant
- Patent Title: Collaborative device address rotation
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Application No.: US17329843Application Date: 2021-05-25
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Publication No.: US11700527B2Publication Date: 2023-07-11
- Inventor: Srinath Gundavelli , Stephen Michael Orr , Shree N. Murthy
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee Address: US CA San Jose
- Agency: Edell, Shapiro & Finnan, LLC
- Main IPC: H04W8/26
- IPC: H04W8/26 ; H04W12/69 ; H04W12/041 ; H04W12/06 ; H04L61/5046

Abstract:
Embodiments are presented for collaborative device address generation between a wireless client device and a network infrastructure component, such as a wireless access point. The wireless client device and network infrastructure component share information to facilitate collaborative generation of a sequence of device addresses. This shared information includes, in some embodiments, key information and moving factor information. The key information and moving factor information is used to generate a token. A sequence of tokens is generated by updating the moving factor as each token is generated. A corresponding sequence of device addresses are then derived based on the sequence of tokens. Since the wireless client device and the network infrastructure device apply equivalent methods to generate respective sequences of addresses, the network infrastructure is able to efficiently identify a source wireless client device when observing a new device address on a wireless network.
Public/Granted literature
- US20220386110A1 COLLABORATIVE DEVICE ADDRESS ROTATION Public/Granted day:2022-12-01
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